Gulkave

This game has a test mode. You can access to this mode by pressing the following keys when you are on the title screen :

RIGHT RIGHT LEFT LEFT UP DOWN LEFT DOWN DOWN DOWN

There are 3 options in the test mode :

1 - Sound test
2 - Game level (easy or hard)
3 - Exit

Notes :

- on an emulator, use a good rom !

- the game has been also released for the SG-1000 console with some differences :

* 30 rounds in stead of 32 rounds

* the access to the test mode requires to press the following keys on the title screen :

UP UP DOWN DOWN UP RIGHT DOWN LEFT DOWN DOWN

A heavily underestimated shooter.